请问,厕所在哪里?
qǐngwèn , cèsuǒ zài nǎlǐ ?
Excuse me, where is the restroom?
请问,您是学生吗?
qǐngwèn , nín shì xuéshēng ma ?
Excuse me, are you a student?
请问,这条路通往火车站吗?
qǐngwèn , zhè tiáo lù tōngwǎng huǒchē zhàn ma ?
Excuse me, does this road lead to the train station?